Final Project
Population Characteristic (Asthma) vs. Air Quality Indicators (Ozone, Pesticide Use, and Toxic Releases from Facilities):
Asthma data retrieval and visualization Ozone data retrieval and visualization
Pesticides data retrieval and visualization `Tox. Release` data retrieval and visualization Scatterplots 
Linear Regression Analysis
##
## Call:
## lm(formula = log(Asthma) ~ Ozone, data = bayarea_asthma__tract)
##
## Residuals:
## Min 1Q Median 3Q Max
## -2.12970 -0.46059 -0.02519 0.41458 1.79404
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 3.9426 0.1378 28.611 <2e-16 ***
## Ozone -6.3627 3.8038 -1.673 0.0946 .
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.6916 on 1578 degrees of freedom
## Multiple R-squared: 0.00177, Adjusted R-squared: 0.001137
## F-statistic: 2.798 on 1 and 1578 DF, p-value: 0.09458
##
## Call:
## lm(formula = log(Asthma) ~ Pesticides, data = bayarea_asthma__tract)
##
## Residuals:
## Min 1Q Median 3Q Max
## -2.11706 -0.46207 -0.02622 0.45160 1.78191
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 3.712e+00 1.750e-02 212.17 <2e-16 ***
## Pesticides 9.876e-05 1.085e-04 0.91 0.363
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.6921 on 1578 degrees of freedom
## Multiple R-squared: 0.000525, Adjusted R-squared: -0.0001084
## F-statistic: 0.8289 on 1 and 1578 DF, p-value: 0.3627
##
## Call:
## lm(formula = log(Asthma) ~ `Tox. Release`, data = bayarea_asthma__tract)
##
## Residuals:
## Min 1Q Median 3Q Max
## -3.02998 -0.43918 0.00386 0.45439 1.70049
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 3.623e+00 2.057e-02 176.150 < 2e-16 ***
## `Tox. Release` 2.135e-04 2.683e-05 7.958 3.31e-15 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.6788 on 1578 degrees of freedom
## Multiple R-squared: 0.03859, Adjusted R-squared: 0.03798
## F-statistic: 63.33 on 1 and 1578 DF, p-value: 3.306e-15Socioeconomic Factor (Poverty) vs. Environmental Effects Indicators (Groundwater threats, Hazardous Waste, and Solid waste sites/facilities):
Poverty data retrieval and visualization `Groundwater Threats` data retrieval and visualization `Haz. Waste` data retrieval and visualization `Solid Waste` data retrieval and visualization Scatterplots
Linear Regression Analysis
##
## Call:
## lm(formula = log(Poverty) ~ `Groundwater Threats`, data = bayarea_Poverty__tract)
##
## Residuals:
## Min 1Q Median 3Q Max
## -2.72906 -0.46085 0.03287 0.49876 1.70105
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 2.696162 0.019896 135.512 <2e-16 ***
## `Groundwater Threats` 0.003374 0.000377 8.948 <2e-16 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.6713 on 1571 degrees of freedom
## Multiple R-squared: 0.0485, Adjusted R-squared: 0.04789
## F-statistic: 80.07 on 1 and 1571 DF, p-value: < 2.2e-16
##
## Call:
## lm(formula = log(Poverty) ~ `Haz. Waste`, data = bayarea_Poverty__tract)
##
## Residuals:
## Min 1Q Median 3Q Max
## -2.78135 -0.46379 0.02721 0.49529 1.70676
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 2.760480 0.019150 144.154 <2e-16 ***
## `Haz. Waste` 0.033657 0.009486 3.548 4e-04 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.6855 on 1571 degrees of freedom
## Multiple R-squared: 0.007949, Adjusted R-squared: 0.007317
## F-statistic: 12.59 on 1 and 1571 DF, p-value: 0.0003998
##
## Call:
## lm(formula = log(Poverty) ~ `Solid Waste`, data = bayarea_Poverty__tract)
##
## Residuals:
## Min 1Q Median 3Q Max
## -2.77988 -0.45871 0.02217 0.49372 1.62537
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 2.756652 0.018436 149.524 < 2e-16 ***
## `Solid Waste` 0.023232 0.004633 5.014 5.94e-07 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.6828 on 1571 degrees of freedom
## Multiple R-squared: 0.01575, Adjusted R-squared: 0.01512
## F-statistic: 25.14 on 1 and 1571 DF, p-value: 5.937e-07